Seiko Cal. 6637 - 960

This Kinetic model from 1990 features a 40mm PVD Black case. Powered by the 6637 caliber with 36j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-df155b64b710]

Also known as: Bullhead, Emperor

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

40mm

Case Thickness

14.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1990

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